An office was hijacked by a group of gangsters in a building,and our troop received the mission to rescue the officer in that building. If we failed the mission,its possible that the gangsters might kill the officer. So this is a mission we cant fail! As one of the elite troop snipers,you are sent there to take part in the mission,your job is to kill those guards and hidden gangsters that might shoot you with their weapons. Its full of dangers in that building so you have to be careful,one step mistake might result in the failure of the mission.